[kvm:kvm-coco-queue 30/121] arch/x86/include/asm/tdx.h:183:12: error: unused function 'tdx_get_nr_guest_keyids'

[kvm:kvm-coco-queue 30/121] arch/x86/include/asm/tdx.h:183:12: error: unused function 'tdx_get_nr_guest_keyids'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git kvm-coco-queue
head:   ff2046f9bcd0883c72158404a1466eb96781ccca
commit: 5c017bb4d89f65807c56d652443b53e7765b8b35 [30/121] KVM: TDX: Register TDX host key IDs to cgroup misc controller
config: x86_64-randconfig-004-20250224 (https://download.01.org/0day-ci/archive/20250224/202502240742.C79LoViU-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250224/202502240742.C79LoViU-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502240742.C79LoViU-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <built-in>:4:
   In file included from drivers/gpu/drm/xe/compat-i915-headers/i915_utils.h:6:
   In file included from drivers/gpu/drm/xe/compat-i915-headers/../../i915/i915_utils.h:37:
   In file included from arch/x86/include/asm/hypervisor.h:37:
   In file included from arch/x86/include/asm/kvm_para.h:10:
>> arch/x86/include/asm/tdx.h:183:12: error: unused function 'tdx_get_nr_guest_keyids' [-Werror,-Wunused-function]
     183 | static u32 tdx_get_nr_guest_keyids(void) { return 0; }
         |            ^~~~~~~~~~~~~~~~~~~~~~~
   1 error generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for FB_IOMEM_HELPERS
   Depends on [n]: HAS_IOMEM [=y] && FB_CORE [=n]
   Selected by [m]:
   - DRM_XE_DISPLAY [=y] && HAS_IOMEM [=y] && DRM [=m] && DRM_XE [=m] && DRM_XE [=m]=m [=m] && HAS_IOPORT [=y]


vim +/tdx_get_nr_guest_keyids +183 arch/x86/include/asm/tdx.h

   162	
   163	u64 tdh_mng_addcx(struct tdx_td *td, struct page *tdcs_page);
   164	u64 tdh_vp_addcx(struct tdx_vp *vp, struct page *tdcx_page);
   165	u64 tdh_mng_key_config(struct tdx_td *td);
   166	u64 tdh_mng_create(struct tdx_td *td, u16 hkid);
   167	u64 tdh_vp_create(struct tdx_td *td, struct tdx_vp *vp);
   168	u64 tdh_mng_rd(struct tdx_td *td, u64 field, u64 *data);
   169	u64 tdh_vp_flush(struct tdx_vp *vp);
   170	u64 tdh_mng_vpflushdone(struct tdx_td *td);
   171	u64 tdh_mng_key_freeid(struct tdx_td *td);
   172	u64 tdh_mng_init(struct tdx_td *td, u64 td_params, u64 *extended_err);
   173	u64 tdh_vp_init(struct tdx_vp *vp, u64 initial_rcx, u32 x2apicid);
   174	u64 tdh_vp_rd(struct tdx_vp *vp, u64 field, u64 *data);
   175	u64 tdh_vp_wr(struct tdx_vp *vp, u64 field, u64 data, u64 mask);
   176	u64 tdh_phymem_page_reclaim(struct page *page, u64 *tdx_pt, u64 *tdx_owner, u64 *tdx_size);
   177	u64 tdh_phymem_cache_wb(bool resume);
   178	u64 tdh_phymem_page_wbinvd_tdr(struct tdx_td *td);
   179	#else
   180	static inline void tdx_init(void) { }
   181	static inline int tdx_cpu_enable(void) { return -ENODEV; }
   182	static inline int tdx_enable(void)  { return -ENODEV; }
 > 183	static u32 tdx_get_nr_guest_keyids(void) { return 0; }
   184	static inline const char *tdx_dump_mce_info(struct mce *m) { return NULL; }
   185	static inline const struct tdx_sys_info *tdx_get_sysinfo(void) { return NULL; }
   186	#endif	/* CONFIG_INTEL_TDX_HOST */
   187	

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